DE69606672T2 - Verfahren und Apparat zur Gewinnung von kondensierbaren Stoffen aus dem Dampf von einem Vakuumverdampfer der Harnstoffsynthese - Google Patents
Verfahren und Apparat zur Gewinnung von kondensierbaren Stoffen aus dem Dampf von einem Vakuumverdampfer der HarnstoffsyntheseInfo
- Publication number
- DE69606672T2 DE69606672T2 DE69606672T DE69606672T DE69606672T2 DE 69606672 T2 DE69606672 T2 DE 69606672T2 DE 69606672 T DE69606672 T DE 69606672T DE 69606672 T DE69606672 T DE 69606672T DE 69606672 T2 DE69606672 T2 DE 69606672T2
- Authority
- DE
- Germany
- Prior art keywords
- absorption
- vapor
- urea
- stage
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 93
- 239000004202 carbamide Substances 0.000 title claims description 93
- 238000000034 method Methods 0.000 title claims description 27
- 239000000126 substance Substances 0.000 title claims description 3
- 230000015572 biosynthetic process Effects 0.000 title description 2
- 238000003786 synthesis reaction Methods 0.000 title 1
- 238000010521 absorption reaction Methods 0.000 claims description 82
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 229910001868 water Inorganic materials 0.000 claims description 32
- 229910021529 ammonia Inorganic materials 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 21
- 239000006096 absorbing agent Substances 0.000 claims description 17
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000007738 vacuum evaporation Methods 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 230000003134 recirculating effect Effects 0.000 claims 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 34
- 239000000047 product Substances 0.000 description 21
- 239000000243 solution Substances 0.000 description 20
- 239000002250 absorbent Substances 0.000 description 17
- 230000002745 absorbent Effects 0.000 description 17
- 229910002092 carbon dioxide Inorganic materials 0.000 description 17
- 238000009833 condensation Methods 0.000 description 14
- 230000005494 condensation Effects 0.000 description 14
- 238000001704 evaporation Methods 0.000 description 14
- 230000008020 evaporation Effects 0.000 description 14
- 238000005469 granulation Methods 0.000 description 8
- 230000003179 granulation Effects 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004094 preconcentration Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000012035 limiting reagent Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/16—Vacuum
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/16—Combination
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/499,510 US5744009A (en) | 1995-07-07 | 1995-07-07 | Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69606672D1 DE69606672D1 (de) | 2000-03-23 |
| DE69606672T2 true DE69606672T2 (de) | 2000-11-23 |
Family
ID=23985542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69606672T Expired - Lifetime DE69606672T2 (de) | 1995-07-07 | 1996-05-09 | Verfahren und Apparat zur Gewinnung von kondensierbaren Stoffen aus dem Dampf von einem Vakuumverdampfer der Harnstoffsynthese |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5744009A (ko) |
| EP (1) | EP0752416B1 (ko) |
| JP (1) | JPH0920747A (ko) |
| KR (1) | KR100407370B1 (ko) |
| CA (1) | CA2174016C (ko) |
| DE (1) | DE69606672T2 (ko) |
| ES (1) | ES2141995T3 (ko) |
| GR (1) | GR3033336T3 (ko) |
| MX (1) | MX9602588A (ko) |
| NO (1) | NO962854L (ko) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4112056B2 (ja) * | 1997-12-18 | 2008-07-02 | 東洋エンジニアリング株式会社 | 改良された尿素の合成方法および装置 |
| FR2788994B1 (fr) * | 1999-01-28 | 2001-04-20 | Sirven | Procede et installation pour l'epuration chimique de la vapeur dans un deshydrateur a compression mecanique de la vapeur |
| SE527868C8 (sv) * | 2004-11-17 | 2006-09-26 | Alfa Laval Corp Ab | Värmeväxlaranläggning för indunstning |
| US9005422B2 (en) * | 2007-08-31 | 2015-04-14 | Energy & Environmental Research Center Foundation | Electrochemical process for the preparation of nitrogen fertilizers |
| US8152988B2 (en) * | 2007-08-31 | 2012-04-10 | Energy & Enviromental Research Center Foundation | Electrochemical process for the preparation of nitrogen fertilizers |
| US7687041B2 (en) * | 2008-02-27 | 2010-03-30 | Kellogg Brown & Root Llc | Apparatus and methods for urea production |
| TW201005813A (en) | 2008-05-15 | 2010-02-01 | Du Pont | Process for forming an electroactive layer |
| EP2153880A1 (en) * | 2008-07-31 | 2010-02-17 | Urea Casale S.A. | Process and plant for the production of a urea solution for use in SCR process for reduction of Nox |
| TW201039382A (en) | 2009-03-06 | 2010-11-01 | Du Pont | Process for forming an electroactive layer |
| EP2406813A4 (en) * | 2009-03-09 | 2012-07-25 | Du Pont | METHOD FOR FORMING AN ELECTROACTIVE LAYER |
| EP2766341B1 (en) * | 2011-10-14 | 2018-07-04 | Stamicarbon B.V. | Urea finishing method |
| CN103214009B (zh) * | 2013-03-22 | 2014-12-03 | 中石化宁波工程有限公司 | 一种合成氨脱碳工艺 |
| CN109070043B (zh) * | 2016-05-03 | 2019-12-06 | 斯塔米卡邦有限公司 | 在控制缩二脲的情况下的尿素生产 |
| CN110891933B (zh) * | 2017-07-14 | 2021-06-22 | 斯塔米卡邦有限公司 | 脲修整和废气处理工厂以及方法 |
| IT201700121364A1 (it) * | 2017-10-25 | 2019-04-25 | Saipem Spa | Apparato e metodo per il trattamento di vapori di processo provenienti da una sezione di concentrazione sottovuoto di un impianto urea |
| WO2021137701A1 (en) * | 2019-12-30 | 2021-07-08 | Stamicarbon B.V. | Urea production with multiple evaporators |
| AU2020416395B2 (en) * | 2019-12-30 | 2023-02-02 | Stamicarbon B.V. | Urea plant with chilled condensation section |
| CN114901636A (zh) | 2019-12-30 | 2022-08-12 | 斯塔米卡邦有限公司 | 从尿素精加工中去除氨 |
| CN113101682B (zh) * | 2021-05-28 | 2023-03-24 | 新疆心连心能源化工有限公司 | 减少蒸发掉缩合物稳定尿素生产的装置及处理方法 |
| CN113562743B (zh) * | 2021-08-19 | 2022-10-18 | 上海大学(浙江·嘉兴)新兴产业研究院 | 一种氨气的浓缩回收装置及钛酸钡的生产设备和生产方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2682499A (en) * | 1950-03-20 | 1954-06-29 | Kraft Foods Co | High vacuum distillation and drying system |
| US3155722A (en) * | 1960-01-29 | 1964-11-03 | Chemical Construction Corp | Recovery of residual ammonia and carbon dioxide in the synthesis of urea |
| US3711544A (en) * | 1970-04-20 | 1973-01-16 | Lummus Co | Heat recovery in urea synthesis |
| JPS555977B2 (ko) * | 1974-05-14 | 1980-02-12 | ||
| US3985523A (en) * | 1974-09-30 | 1976-10-12 | Foster Wheeler Energy Corporation | Pollution control process for fertilizer plant |
| US4256662A (en) * | 1980-01-18 | 1981-03-17 | Gorlovsky David M | Process for producing urea |
| US4311856A (en) * | 1980-12-31 | 1982-01-19 | Toyo Engineering Corp. | Process for synthesizing urea |
| CN1048979C (zh) * | 1990-06-25 | 2000-02-02 | 乌里阿·卡萨勒有限公司 | 用于尿素工厂的真空分离器 |
-
1995
- 1995-07-07 US US08/499,510 patent/US5744009A/en not_active Expired - Lifetime
-
1996
- 1996-04-12 CA CA002174016A patent/CA2174016C/en not_active Expired - Lifetime
- 1996-05-09 DE DE69606672T patent/DE69606672T2/de not_active Expired - Lifetime
- 1996-05-09 ES ES96107425T patent/ES2141995T3/es not_active Expired - Lifetime
- 1996-05-09 EP EP96107425A patent/EP0752416B1/en not_active Expired - Lifetime
- 1996-05-28 KR KR1019960018328A patent/KR100407370B1/ko not_active IP Right Cessation
- 1996-06-25 JP JP8163956A patent/JPH0920747A/ja active Pending
- 1996-07-03 MX MX9602588A patent/MX9602588A/es not_active IP Right Cessation
- 1996-07-05 NO NO962854A patent/NO962854L/no unknown
-
2000
- 2000-04-26 GR GR20000401020T patent/GR3033336T3/el not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100407370B1 (ko) | 2004-04-09 |
| MX9602588A (es) | 1997-03-29 |
| AU5211996A (en) | 1997-01-23 |
| EP0752416A1 (en) | 1997-01-08 |
| KR970005335A (ko) | 1997-02-19 |
| CA2174016A1 (en) | 1997-01-08 |
| NO962854D0 (no) | 1996-07-05 |
| DE69606672D1 (de) | 2000-03-23 |
| GR3033336T3 (en) | 2000-09-29 |
| ES2141995T3 (es) | 2000-04-01 |
| AU702000B2 (en) | 1999-02-11 |
| JPH0920747A (ja) | 1997-01-21 |
| CA2174016C (en) | 2005-11-22 |
| EP0752416B1 (en) | 2000-02-16 |
| US5744009A (en) | 1998-04-28 |
| NO962854L (no) | 1997-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |